Apparatus for scoring paper, cardboard, or like material



Novr 14, 1933. PRIQR 1,935,522

APPARATUS FOR SCORING PAPER, CARDBOARD, OR LIKE MATERIAL Filed Oct. 17,1932 Patented Nov. 14, 1933 APPARATUS FOR SCORING PAPER, I BOARD, R LIKEMATERIAL Alfred Prior, Deptford, London, England Application October17,. 1932, Serial No. 638,242,

' and in Great Britain October 27, 1931 1 Claim. (01. 16460) Thisinvention is for improvements in apparatus for scoring paper, cardboardor like material, such as is used for example in packing and box makingmachinery.

5 The object of the invention is to provide means whereby the scoringapparatus may be adjusted to give any desired depth to each separate,score to suit the particular work in hand.

Referring to the drawing which shows one way of carrying the inventioninto efiect, a scoring roller 1 provided with circumferential ridges orblades 2 spaced apart the required amount is arranged to co-operate witha pressure roller hereinafter described, and the material to be scoredis fed between the two rollers in the usual manner.

The pressure roller is furnished with plain surfaces at the positionwhere the blades on the scoring roller meet the same so that the scoringis effected entirely by the blades, the pressure roller serving only tosupport the material.

In accordance with the present invention, the portions. of the pressureroller, at the points where the blades on the scoring roller arelocated,

vided with a groove or keyway 5, and the collars are merely fitted inpositi-on by set screws 6 which enter thesaidkeyway.

The ends of the groovedspindle carry parallel collars '7 of exactly thesame diameter which run on plain portions of the roller 1 which carriesthe scoring blades 2, and these parallel collars form gauge rings forsetting the two rollers parallel, after which the tapered collars may beadjusted as required.

What I claim as my invention and desire to secure by Letters Patent is:-

In apparatus for scoring "fibrous material, the combination witharotatable shaft provided with a plurality of continuouscircumferentially extending'scoring projections, of a second shaftsupported for rotation adjacent to and substantially parallelwith saidfirst named shaft, a plutwo rality of annular members supported on saidsecond shaft for rotation therewith and for adjustment axially thereof,said members having conical peripheral portions disposed in spacedrelation with corresponding scoring projections to effect scoring ofmaterial passing between the shafts, means for retaining said membersagainst axial displacement on said second shaft and in predeterminedspaced relation with said projections to control thedepth of scoring,and annular gauge rings carried by one of said shaftsadja- ;cent theends thereof and engaging the other shaft to maintain correct spacingbetween the shafts and between the scoring projections and thecooperating annular members. Y

- ALFRED PRIOR.

